2026 ICD-10-CM Diagnosis Code J05.10Acute epiglottitis without obstruction

ICD-10-CM Codes›J00–J99›J00-J06›J05

ICD-10-CM J05.10
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

J05.10 is a billable ICD-10-CM diagnosis code for acute epiglottitis without obstruction. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 152 through 153. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 8 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified upper respiratory infections.

Code Identity

ICD-10-CM Code
J05.10
Billable Status
Yes — Valid for Submission
Code Describes
Acute epiglottitis without obstruction
Short Description
Acute epiglottitis without obstruction
Same as the full description in the CMS dataset.
Parent Code
J05.1
Acute epiglottitis

Code Classification

ChapterJ00–J99Diseases of the respiratory system
SectionJ00-J06Acute upper respiratory infections
CategoryJ05Acute obstructive laryngitis [croup] and epiglottitis
This CodeJ05.10Acute epiglottitis without obstruction

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute bacterial epiglottitis
  • Acute epiglottitis
  • Acute epiglottitis without obstruction
  • Adult acute epiglottitis and supraglottitis
  • Epiglottitis
  • Granulomatous epiglottitis
  • Haemophilus influenzae epiglottitis
  • Haemophilus influenzae laryngitis
  • Inflammation of larynx caused by virus
  • Pediatric acute epiglottitis and supraglottitis
  • Viral epiglottitis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Epiglottitis NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR RSP006
Other specified upper respiratory infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Epiglottitis

    inflammation of the epiglottis.

  • Epiglottis

    a thin leaf-shaped cartilage that is covered with laryngeal mucosa and situated posterior to the root of the tongue and hyoid bone. during swallowing, the epiglottis folds back over the larynx inlet thus prevents foods from entering the airway.

  • Viral Laryngitis

    acute inflammation of the larynx caused by viruses, including rhinovirus, influenza virus, parainfluenza virus, and adenovirus.

Patient EducationClinical

Throat Disorders

Your throat is a tube that carries food to your esophagus and air to your windpipe and larynx. The technical name for your throat is the pharynx.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert J05.10 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
464.30 Ac epiglottitis no obstr
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About J05.10Overview

What is the ICD-10 code for acute epiglottitis without obstruction?

The ICD-10-CM code for acute epiglottitis without obstruction is J05.10 (sometimes written as J0510). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is J05.10 (Acute epiglottitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acute epiglottitis without obstruction on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does J05.10 group to?

When acute epiglottitis without obstruction is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 152, 153, with relative weights from 0.7382 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.

Is J05.10 a CC or MCC?

CMS lists J05.10 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 8 closely related codes in its exclusion list.

What is the ICD-9 equivalent of J05.10?

Under the General Equivalence Mappings, acute epiglottitis without obstruction converts to ICD-9-CM 464.30 (ac epiglottitis no obstr). The mapping is a direct match.